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<td ><a href="../qtdoc/index.html">Qt 5.12</a></td><td ><a href="qtquick-index.html">Qt Quick 模块</a></td><td ><a href="qtquick-qmlmodule.html">QML类型</a></td><td >FontLoader QML 类型</td></tr></table><table class="buildversion"><tr>
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<h3><a name="toc">目录</a></h3>
<ul>
<li class="level1"><a href="#properties">属性</a></li>
<li class="level1"><a href="#details">详细信息</a></li>
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<h1 class="title">FontLoader QML 类型</h1>
<span class="subtitle"></span>
<!-- $$$FontLoader-brief -->
<p>Allows fonts to be loaded by name or URL. <a href="#details">更多...</a></p>
<!-- @@@FontLoader -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> 导入语句：</td><td class="memItemRight bottomAlign"> import QtQuick 2.12</td></tr></table></div><ul>
<li><a href="qml-qtquick-fontloader-members.html">所有成员的列表，包括继承成员</a></li>
</ul>
<a name="properties"></a>
<h2 id="properties">属性</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-fontloader.html#name-prop">name</a></b></b> : string</li>
<li class="fn"><b><b><a href="qml-qtquick-fontloader.html#source-prop">source</a></b></b> : url</li>
<li class="fn"><b><b><a href="qml-qtquick-fontloader.html#status-prop">status</a></b></b> : enumeration</li>
</ul>
<!-- $$$FontLoader-description -->
<a name="details"></a>
<h2 id="details">详细信息</h2>
<p>The <a href="qml-qtquick-fontloader.html">FontLoader</a> type is used to load fonts by name or URL.</p>
<p>The <a href="qml-qtquick-fontloader.html#status-prop">status</a> indicates when the font has been loaded, which is useful for fonts loaded from remote sources.</p>
<p>For example:</p>
<pre class="qml">

  import QtQuick 2.0

  <span class="type"><a href="qml-qtquick-column.html">Column</a></span> {
      <span class="type"><a href="qml-qtquick-fontloader.html">FontLoader</a></span> { <span class="name">id</span>: <span class="name">fixedFont</span>; <span class="name">name</span>: <span class="string">&quot;Courier&quot;</span> }
      <span class="type"><a href="qml-qtquick-fontloader.html">FontLoader</a></span> { <span class="name">id</span>: <span class="name">webFont</span>; <span class="name">source</span>: <span class="string">&quot;http://www.mysite.com/myfont.ttf&quot;</span> }

      <span class="type"><a href="qml-qtquick-text.html">Text</a></span> { <span class="name">text</span>: <span class="string">&quot;Fixed-size font&quot;</span>; <span class="name">font</span>.family: <span class="name">fixedFont</span>.<span class="name">name</span> }
      <span class="type"><a href="qml-qtquick-text.html">Text</a></span> { <span class="name">text</span>: <span class="string">&quot;Fancy font&quot;</span>; <span class="name">font</span>.family: <span class="name">webFont</span>.<span class="name">name</span> }
  }

</pre>
<p><b>请参考 </b><a href="qtquick-text-example.html#fonts">Qt Quick 示例 - Text Fonts</a>。</p>
<!-- @@@FontLoader -->
<h2>属性文档</h2>
<!-- $$$name -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="name-prop">
<td class="tblQmlPropNode"><p>
<a name="name-prop"></a><span class="name">name</span> : <span class="type"><a href="../qtqml/qml-string.html">string</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the name of the font family. It is set automatically when a font is loaded using the <a href="qml-qtquick-fontloader.html#source-prop">source</a> property.</p>
<p>Use this to set the <code>font.family</code> property of a <code>Text</code> item.</p>
<p>Example:</p>
<pre class="qml">

  <span class="type"><a href="qml-qtquick-item.html">Item</a></span> {
      <span class="name">width</span>: <span class="number">200</span>; <span class="name">height</span>: <span class="number">50</span>

      <span class="type"><a href="qml-qtquick-fontloader.html">FontLoader</a></span> {
          <span class="name">id</span>: <span class="name">webFont</span>
          <span class="name">source</span>: <span class="string">&quot;http://www.mysite.com/myfont.ttf&quot;</span>
      }
      <span class="type"><a href="qml-qtquick-text.html">Text</a></span> {
          <span class="name">text</span>: <span class="string">&quot;Fancy font&quot;</span>
          <span class="name">font</span>.family: <span class="name">webFont</span>.<span class="name">name</span>
      }
  }

</pre>
</div></div><!-- @@@name -->
<br/>
<!-- $$$source -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="source-prop">
<td class="tblQmlPropNode"><p>
<a name="source-prop"></a><span class="name">source</span> : <span class="type"><a href="../qtqml/qml-url.html">url</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>The URL of the font to load.</p>
</div></div><!-- @@@source -->
<br/>
<!-- $$$status -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="status-prop">
<td class="tblQmlPropNode"><p>
<a name="status-prop"></a><span class="name">status</span> : <span class="type"><a href="../qtqml/qml-enumeration.html">enumeration</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the status of font loading. It can be one of:</p>
<ul>
<li><a href="qml-qtquick-fontloader.html">FontLoader</a>.Null - no font has been set</li>
<li><a href="qml-qtquick-fontloader.html">FontLoader</a>.Ready - the font has been loaded</li>
<li><a href="qml-qtquick-fontloader.html">FontLoader</a>.Loading - the font is currently being loaded</li>
<li><a href="qml-qtquick-fontloader.html">FontLoader</a>.Error - an error occurred while loading the font</li>
</ul>
<p>Use this status to provide an update or respond to the status change in some way. For example, you could:</p>
<ul>
<li>Trigger a state change:<pre class="qml">

  <span class="type"><a href="qml-qtquick-state.html">State</a></span> { <span class="name">name</span>: <span class="string">'loaded'</span>; <span class="name">when</span>: <span class="name">loader</span>.<span class="name">status</span> <span class="operator">==</span> <span class="name">FontLoader</span>.<span class="name">Ready</span> }

</pre>
</li>
<li>Implement an <code>onStatusChanged</code> signal handler:<pre class="qml">

  <span class="type"><a href="qml-qtquick-fontloader.html">FontLoader</a></span> {
      <span class="name">id</span>: <span class="name">loader</span>
      <span class="name">onStatusChanged</span>: <span class="keyword">if</span> (<span class="name">loader</span>.<span class="name">status</span> <span class="operator">==</span> <span class="name">FontLoader</span>.<span class="name">Ready</span>) <span class="name">console</span>.<span class="name">log</span>(<span class="string">'Loaded'</span>)
  }

</pre>
</li>
<li>Bind to the status value:<pre class="qml">

  <span class="type"><a href="qml-qtquick-text.html">Text</a></span> { <span class="name">text</span>: <span class="name">loader</span>.<span class="name">status</span> <span class="operator">==</span> <span class="name">FontLoader</span>.<span class="name">Ready</span> ? <span class="string">'Loaded'</span> : <span class="string">'Not loaded'</span> }

</pre>
</li>
</ul>
</div></div><!-- @@@status -->
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